[Ant]

In my years of racing, and giving vehicles a hard time I have never had a driveshaft fail, but it only needs to happen once and cause injury....!

So this is what I have done from the strength of parts point of view, and of course a regular check for wear and tear is very important. Buy good quality U/Joints, and as big as possible I used 1350 series, with a Mark Williams machined yoke for my Jerico, and I also purchased top quality weld on driveshaft parts etc, including the U bolt 8.8" differential pinion hub to cope with these large style U/joints. The driveshaft is only going to be well under 2' long, so I will fit a hoop made out of 1/8" strap, about 2" wide securely attached probably top and bottom, quite frankly you can make your hoop out of 1/4" or bigger but its a waste of time and excessive weight if it isnt supported properly, and quite close to the driveshaft tube, so in event of failure the least angle the better!

Also the requirement here is to have the Hoop more to the front of the driveshaft according to the certification guy, but that may depend on where the seats are!